Actress Ashley Greene doesn’t have to use the intuitive powers of her Twilight character, Alice Cullen, to know fans will love Taylor Lautner’s shirtless scenes in the upcoming sequel The Twilight Saga: New Moon.

“He looks like he’s in 300!� Ashley tells In Touch of the 17-year-old, who packed on nearly 30 pounds of muscle to play Jacob Black again.

“I was in the makeup trailer and I looked over as he was taking his shirt off and said to him, ‘You’ve got to be joking!’� Ashley recalls. “He looks fantastic. The girls are going to be satisfied, let me tell you!�

Ashley’s also doing her part to make girls’ dreams come true: She’s a spokesperson for donatemydress.org, a charity where teens can donate a gently used prom dress for a girl in need to a Saks Fifth Avenue store through March 31 and in return receive a store discount.